Lubricator system.



W. S. HARLEY.

LUBRIGATOR SYSTEM.

APPLICATION FILED JUNE 14, 1910.

Patented Dec. 27, 1910.

3 SHEETS-SHEET 1.

'UIIIIIII llllllllll lllll IIIIIIH W. S. HARLEY.

LUBRIGATOR SYSTEM.

APPLICATION FILED mm: 14, 1910.

Patented Dec. 27, 1910.

3 SHEETB BI-IEET 2.

w. s. HARLEY.

LUBRIGATOR SYSTEM.

APPLICATION FILED JUNE 14, 1910. 979,484, Patented Dec. 27, 1910.

3 BHEETBSHEET 3.

an STATES. PA i LUBRICATOR SYSTEM.

To all whom it may concern: 7 7

Be it known that I, VILLIAM S. HARLEY, acitizen of the United States, and resident of Milwaukee. in the 'county of Milwaukee and State of \Visconsirnhave invented certain new and useful Improvements in Lubricator Systems; and I do hereby declare that the following is a full, clear, and exact description thereof.

The object'of my invention is to provide a simple, economical and etficient lubricator system especially designed to be applied to self propelled vehicles, the construction and arrangement of the system being such that a rotary valve, operating in unison with a double acting pump, successively places the pump in communication with separate sets of ducts. whereby all check valves are dispensed with and clean oil is distributed to the various' journals of an incased mechanism and the surplus oil so distributed is returned to the oil reservoir thro-ugha suitable filter, from which reservoir ibis-circulated throughout the system.

Tith the above objects in view the in-- vention consists in certain peculiarities of construction and combination of parts to be fully set forth with reference to the accom of the crank casing. illustrating the raised seat or pump housing seat and communicating c il ducts; Fig. 4, an inverted .view of the pump housing, illustrating various oil channels which are adapted to register with the oil ducts of the crank casing-seat; Fig. 5, a longitudinal sectional view of a pump as indicated'by line 5-5 of Fig. 1; Fig. 6,51 detail cross-section of thepump and crank casing as indicated by line 66 of Fig. 1; Fig.

7 a detail sectional view of the pump as indicated" by line 77 of Fig. 1, and Fig. 8, a view in diagram of the entire lubricator system.

Referring by characters to the drawings, 1 represents one member of a motor crank casing having a centrally disposed bearingb0ss 2 for a crank-shaft 8, there being a me Specification of Letters Patent.

Application filed June 14, 1910.

Patented Dec. 27, 1910.

Serial no. 566,787.

tallic bushing4; interposed between the shaft and bearing-boss. The crank. for crankshaft 3 is composed of apair of disks 5 secured to stud portions of the crank-shaft, only one of which is shown, the disks being adapted to rotate within the crank casing. These disks are connected by the usual crank pin 6, which is also provided with a bushing 7, upon which is mounted a pitman 8. The

exterior face of the crank casing is provided with araised seat 9 and from this seat.

the mouth of an oil duct 10 communicates with the inner annular face of the bearingboss 2. The bushing 4 isprovided with an aperture 4 that registers with the oil duct 10, said aperture being in communication with an annular groove 11 formed intheface of the crank-shaft.

A channel 12, in the stud portion of the crank-shaft, communicates with the annular bushing, whereby oil is distributed to the groovell' of the bushing, the channel being arranged to extend through the body of disk is the flat face 14 of a pump housing 15, and,

as best shown in Fig. 4, the flat face of said pump housing is provided with'an oil duct 10*, which ductis adapted to commumcate with the clean oil duct 10. Another duct 13 formed in the flat face 14 of the pump housing is in register with the oil duct 13. The

ducts 10 and 13 communicate with a cylin dricalchamber 16 formed in the housing-and directly under the oil duct 10'is a duct 10 threaded nipple, to which nipple is coupled an oil supply pipe 18, that serves as a con- .duc'tor for the distribution of clean oil to the crank shaft journals, through the medium of a rotary valve to be hereinafter described, the ducts 10 10 and 10 comprising a' set.

The duct 13 forms one of-a second set-of oil passages which are utilized to return surplus oilfromthe crank casing well, the set comprising a. duct 13, which .is located directly above the duct 13 and communicates with the outer end of the pump cylinder 17, as

best shown in Fig. 4, and aduct 13 that leads from the chamber 16, completing the second series, the said last mentioned duct' being disposed at an approximate angle of 90 from the ducts 13, 13 The duct 13 passes through a threaded nipple that ex- 1 groove'2l is connected by a longitudinal groove 22 to semicircular grooves 21*, 21 respectlvely, below and above the same.

These semicircular grooves are staggered with relation to each other, in such manner that their respective termlnals are approximately at angles of 90,- the lower groove 21 being adapted to communicate with the duct 10, while the upper groove 21 is adapted to'communicatc'with the mouth of the oilduct 10 system of ducts, is controlled by anannular groove 23 formed in the plug, which groove is in constant communication with the ,duct

' 113". This annular groove 23 is connected by a longitudinal groove 24 to semicircular grooves 23 and 23 the said grooves being staggered with relation to cachother, whereby their terminals are set at an angle of approximately-90, the said-grooves being 111 relativelythe same positions as the semicircular grooves 21 and 21 of the first, or oildistributing series. The last series of grooves 23, 23* and 23 of the plug the return supply of oil that is le back to the reservoir through pipe 19, the groove- 23 being adaptedto register with the mouth of the oil duct 13, while the groove 23 is arranged to communicate with .the oil duct 13. I The head .of the plug 20 is preferably cut to form a worn'i-wheel 25, which wormwheel engages a worm 26 that is'carried by or forms part of a spindle 27. 'The spindle 27 is journaled in. suitablebearings provided in the pump housing and the inner end of said spindle extends through an aperture in the crank casing, at which point it said piston under sideof this block is formed with a The second or oil return control a S OWIl.

carriesa gear-wheel 28'that is adaptedto mesh with a similar" gear-wheel 29 secured to the stud portion of the crank-shaft 3. By this arrangement of gears, continuous rotatory motion is imparted to the valve lugfrom the crank-shaft at the required ow speed. v

Mounted in the pump cylinder 17 is a piston head 30 having a piston rod 31, which piston rod passes through and has sliding fit in a bearing aperture formed in the inner end of the ump'cylinder, the inner end of being secured to a block 32. The

located within this reservoir is a perforated screen 36, around whlch 1s wound any suitable porous fabric, the device constituting a filter to which the oil return pipe 19 is connected; said pipe being provided with a sight feed device 37 for convenience of observation. used in connection with a motorcycle, the oil reservoir or tank is connected to the seat mast or any convenient part of the frame and connected by the "pipes 18 and 19 to the pump housing, as shown in Fig. 1. In the diagram the valve-plug 20 is indicated by .dotted lines with the various oil grooves shown in skeleton form. in full lines, the

.pump piston being provided with a cross head, which is operated by the wrist-pin that is adapted to play within the cross-head slot, the said cross-head being a diagrammatic representation of the block 32 that is clearly shown in Fig. 5.

In the operation of my system, the lug is rotatedin the direction as indicate by the dotted line arrow in Fig. 8. The rotatory plug, as shown: in this figure of the drawings, is in such position, with relation to. the pump cylinder, that the pistonfhas completed its forward stroke. Assuming the parts to be in this position, clean oil will pass from the reservoir through the supply pipe 18 and from thence through the duct 10" to a semicircular groove 21 and from this groove it passes up through the longitudinal groove 22 and around the annular groove 21 and also ;up-through said crossroove 22' to the semicircular groove 21 as Owing to the fact that the last named groove 21 has just passed the oil When the lubricator system is duct 10 communication therewith is cut off and hence the oil which now fills all of the aforesaid grooves will enter the duct 10 and be discharged into the inner end of the pump cylinder. :As the plug continues to .rotate, it causes a backward movement of piston head is completing its back stroke, it

displaces a volume of oil within the cyl-. inder between the piston head and the rear end thereof. This oil has-been previously drawn into the cylinder from the bottom of the crank casing by suction of the piston head in its forward stroke. When said oil'is displaced, as clearly shown in the diagram, it will pass downward through duct 13 to the annular groove 23 of the plug and from thence it will be distributed to the 'semicircular grooves 23*. and 23" by means of the longitudinal. connecting groove In the position shown in the diagram the lower groove 23 has just formed a communication with the duct 13, which duct is inpipe connection with the filter 36. Consequently the piston displaces the body of oil aforesaid during-a half rotation of the plug, this oil being forced through the plug grooves and return pipe .19 to the filter.

Upon the completion of the back stroke of the piston head. the semicircular groove 23 willhave cut off itsconnection with the duct 13 and simultaneously with this action the semicircular groove 23* will make connection with duct 13*, which duct communicates with the bottom of the crank casing. Consequently, while'the valve-plug 20, is making the next half revolution and drawing the piston-head forward, communication is made from the bottom of said casing through the plug grooves to the rear end of the pump cylinder and any oil contained .in the casing above the level of the duct 13 will be drawn by suction into the rear end of the pump cylinder, Upon the forward stroke of the piston it is obvious that clean oil, which had previously been delivered to the for ward end' of the pump cylinder, will be forced out through the duct 10 and into the set of grooves 21, 21, 21 and 22. Owing to the relative positions of the semicircular grooves 21 and 21, as the plug starts to rotate to draw the piston forward the semicircular groove 21 will have made connections with the duct 10*, and the semicircular groove 21 at this time will have out off its communication with duct 10. Consequently upon the next half revolution of the plug the, clean oil in the forward end of the pump and delivered to the oilreservoir.

to the bearing-boss of the crank casing and from thence through the various oil ducts, to the parts desired to belubricated. The excess oil forced to the journals will drain back into the bottom of the crank-casing and be taken up as previously described, filtered Thus the oil is continually used until its lubricating qualities have been all utilized.

As shown in the illustrations, it will be observed that only such oil is left standing in the well portion of the crank-casing as may be below the suction duct 13 and thus the moving parts are all economically lubricated and gumming caused through overfeed or use of the oil in the well is dispensed with and all parts economically and efiiciently oiled. Furthermore, attention is called to the fact that, owing to the two sets of oil grooves in the valve-plug and connecti n between said plug and pump piston, the same are capable of moving in unison, being synchronized in such manner that two complete and distinct pump-controlled oil circuits are formed, one for the dirty oil and one for the clean oil, all of the connections being obtained through the separate sets of .cut-ofl' grooves, whereby check-valves are dispensed with and the device is thus rendered absolutely positive in its operation and accident caused through clogging is thus avoided. It will also be observed that. owing to the pump piston area. that end of the cylinder which is utilized for pumping the clean oil to the bearings, is of less volume than the opposite end of the cylinder which is utilized for pumping the dirtv oil. and hence the capacity of the pump for returning the oil to the reservoir is much greater than the capacity for pumping the clean oil to the bearings. By this arrangement of pump. areas there is no liability to flood the crank casing .or oil receiver well.

While I have shown the mechanism as arranged to keep the crank casing or an equivalent well practically clean of oil, it is obvious that in some instances, especially in connectionwith automobile oiling, that it is desirable to maintain a certain percentage of oil within the well or crank casing. In such. instances the suction aperture 13 would be placed at a height-with relation to the well consistent with depth of oil desired to be maintained, and this level wouldthereafter be positively held owing to the fact that the capacity of the return pumping system 1s greater than the capacity of the supply pumping system.

I claim:

1. In a lubricator system having an oil reservoir, a filter, and a pump mechanism;

the combination of a housing, a rotatory lug seated within the housing, the plug and ousing constituting valve members, two sets cylinder will be forced out through duct 10 of oil grooves in one of the members, each set consisting of a circular and a semicircular transverse groove'di'sposed upon different planes and connected 'by a longitudinal groove, an oil receiving and anoil discharge duct adapted to have alternate communication with the semicircular grooves of each set, the oil receiving duct of one set being in communicationwith the oil reservoir, andthe oil discharge duct of the other set being in communication with the filter and oil reservoir, and an oil duct in constant communication with each circular groove and pump mechanism. I

2. In alubricator system, a double acting pump, a rotatory plu a housing for the plug, the housing and p ug constituting valve members, two sets of oil grooves in one of the members, each set consisting of a circular and a semicircular grgove disposed upon difi'erent planes and connected by a longitudinal groove, an oil receiving and an oil disehar e duct arranged to have alternate communication with the semicircular groove of each set, and an oil duct in constant communication with each circular groove and opposite ends of the pump cylinder.

3. In a lubricator system for engines having incased crank chafts comprising an oil reservoir, a filter in communication with the, reservoir and a double acting pump mechanism, a housing, a rotota'ry plug .seated within the housing, an actuating gear connection between the pump and plug, two sets of. transversely disposed oil grooves in the plug, each set consisting of a circular and a semicircular groove disposed upon different planes and connected by a longitudinal groove, an oil receiving and an oil discharge duct adapted to have alternate communication with the semicircular grooves of each set, the oil receiving duct of one set being in communication with the oil reservoir, and the oil discharge duct being in communication with the engine crank shaft, the oil receiving duct of the, second set being in communication with the crank casing and the oil discharge duct being in communication with the filter, and an oil duct in constant communication with each circular groove and opposite ends of the pump cylinder.

4. In a lubricator system, a rotatory plug, a housing for the plug, two sets of transversely disposed oil grooves in the periphery of the rotatory plug, each set consistingof in constant communication with each circular groove and opposite end of the pump cylinder.

5. In an en e having a crank casing and its crank sha revolubly mounted in bearings of the casing; the combination of a lubricator comprising a housing secured to the crank casing, a valve plug revolubly mounted within-the housing, two sets of oil grooves transversely disposed about the periphery of'the valve plug, each set consisting of a circular and a semicircular grooveupon diflerent planes andconnected by a longitudinal groove, oil receiving and oil discharge ducts in the housing arranged to" have alternate communication with the semicircular groove of each set, a worm-wheel carried by-said valve plug, a worm extending through the housing and crank casing for engagement with the worm-wheel, a gear-wheel secured to the worm, a second ear-wheel secured to the engine crank shaft in mesh with the gear-wheel. carried by the worm, a pump cylinder extending from the houslng, a piston head mounted within the pump cylinder, a piston extending from the head through one end of the pump cylinder, a block having a cross-head carried by the piston, a crank pin extending from one end of the valve plug for engagement with the cross-groove of the head, and an oil duct in constant communication with each circular groove and opposite ends of the pump cylinder. I

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee in the county of Milwaukee and State of Wisconsin in the presence of-two' witness a.

WILLIAM S. HARLEY.

Witnesses:

MAY DOWNEY, CABANAVE YOUNG. 

